Hi Val
He seems to have vanished. His parents are on the 1881 and 1891 census, still living in Gt.Yarmouth. On the 1881 census, they have a daughter Victoria aged 14 and a granddaughter Alice Morgen, who was born in Sunderland.
On the 1891 census, still in Gt.Yarmouth, they have their widowed son James aged 40 and a grandson Joseph J. It doesn't show his place of birth.
I have found their sons Joseph and James on the 1881 census. Joseph is married and living in Islington working as a slaughterman. James is married and living in Hertfordshire and working as a jockey.
There is a death of a Joseph Daniel Howes aged 76 in Sept 1897, Yarmouth 4b 14 and one for an Eleanor aged 82 in December 1903 Blofield 4d 135.
I've found a death for their eldest daughter Nancy and probable marriages for their other daughters. The only one missing is William Robert.
There is a marriage for a William Robert in March 1877 in Wandsworth 1d 561 and a death in Jun 1895 in Kingston 2a 173 (aged 40).
I don't know if these are worth following up. As one of his brothers lived in Islington and his eldest children were born in Southwark, Surrey, perhaps William went to stay with them between census.
Lizzie